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I'm getting Key error in python

... Argh... horrible, horrible unpythonic code. Don't write PHP code in Python: it's not an array, it's a dictionary (you may call it a hash, but array is right out). And: dicts already have your "keyCheck" function: instead of "keyCheck('key1', myarray, '#default')" you'd do "mydic...
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Understanding Canvas and Surface concepts

...seen. A Bitmap is just an interface to some pixel data. The pixels may be allocated by Bitmap itself when you are directly creating one, or it may be pointing to pixels it doesn't own such as what internally happens to hook a Canvas up to a Surface for drawing. (A Bitmap is created and pointed to ...
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How to have jQuery restrict file types on upload?

...ad field to only jpg/jpeg, png, and gif. I am doing backend checking with PHP already. I am running my submit button through a JavaScript function already so I really just need to know how to check for the file types before submit or alert. ...
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When should we use mutex and when should we use semaphore

...have to carefully track who currently has responsibility for it, much like allocated memory). So, if you have a number of instances of a resource (say three tape drives), you could use a semaphore with a count of 3. Note that this doesn't tell you which of those tape drives you have, just that you ...
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Remove a cookie

...'s not enough to set it to expire anytime in the past, as computed by your PHP server. This is because client computers can and often do have times which differ from that of your server. The best practice is to overwrite the current cookie with a blank cookie which expires one second in the future ...
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Is there a way to check which CSS styles are being used or not used on a web page?

...is is aweso -- UnCSS cannot be run on non-HTML pages, such as templates or PHP files - nevermind....... – Brian Powell Dec 15 '17 at 19:36 ...
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dyld: Library not loaded … Reason: Image not found

... executable file you're trying to run. In my case, otool -L /usr/local/bin/php did the trick. – brunouno Nov 25 '18 at 4:36  |  show 1 more co...
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Regular cast vs. static_cast vs. dynamic_cast [duplicate]

... // 4 bytes Since this results in a 4-byte pointer pointing to 1 byte of allocated memory, writing to this pointer will either cause a run-time error or will overwrite some adjacent memory. *p = 5; // run-time error: stack corruption In contrast to the C-style cast, the static cast will allow t...
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Analytics Google API Error 403: “User does not have any Google Analytics Account”

... and added the Service User's email address. .p12 authorization using the PHP API works, but only if I check off "Read & Analyze" only in the permissions list. – Johnny O Sep 15 '15 at 22:18 ...
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access denied for load data infile in MySQL

I use MySQL queries all the time in PHP, but when I try 10 Answers 10 ...